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Scoop.it!
Gracias el bajo coste y la gran popularidad de la Raspberry Pi , hoy en día es muy fácil ofrecer soluciones muy flexibles de control de dispositivos por Internet mediante diferentes vías de una forma muy sencilla sin necesidad de realizar una gran inversión ,saber electrónica ni por supuesto escribir una sola línea de código para ello 
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Scoop.it!
For some projects, you may need to control high-power devices such as a motor, valve, or any 220AC electrical device. Unfortunately, the Raspberry Pi (RPi) cannot handle the power requirements of such devices. The only way to go around this barrier is to include a control interface. We call this interface a relay, and it sits between the RPi and the high-power device.
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Basic tutorial of how to setup a 5V Relay with the Raspberry Pi.
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En esta era de IoT (Internet of Things) donde todo se puede controlar de forma remota con su teléfono inteligente, podemos darle un giro de tuerca a la forma en la que abrimos la puerta de nuestro garaje...vamos, sin usar las llaves!!. En este tutorial, os muestro como abrir la puerta de vuestro garaje usando una Raspberry Pi, un servidor web y un rele para actuar sobre la puerta. Antes deberás tener configurado un servidor web en tu placa, para ello puedes mirar este otro tutorial donde explico como configurar Wordpress en Raspberry Pi
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Presenta la nocion de seguridad cuando empeceis a usar los reles de una cierta capacidad, como estos de 2020 VAC y 10 AMperios.
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Relay is a signal-controlled switch. In this project, we will use Raspberry pi to drive relay and control the on/off of a LED light. After running the code from Pi, the LED will turn on and off LED every one second.
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It's really easy these days to get your hands on a relay board but you'll quickly find out that most of them are designed for 5V which can a problem for a poor raspberry pi or any other microcontroller running on 3.3V, They just don't have the voltage required to trigger the transistor controlling the relay. So in this tutorial, I'll show you a simple modification of these relay boards to make them 3V3 compatible.
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Basic tutorial of how to setup a Solid State Relay with the Raspberry Pi.
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Como conectar y controlar equipos de 110Vac / 220Vac al Arduino, Raspberry Pi o PIC usando los modulos Rele. La tienda donde compre los Rele: http://dinastia...
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A relay is an electrically operated switch, the relay opens when the two contacts are disconnected, and the relay turns on when the two contacts touch. They are designed to be controlled with low voltages like 3.3V like the ESP32, ESP8266 etc or 5V like your Arduino to change the state of an electric circuit from one state to another.
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In this project, we will learn about Relay and Relay Module, interface a Relay with Raspberry Pi and see how to control a Relay using Raspberry Pi. This project could be your first step in implementing your own Home Automation Project using Raspberry Pi.
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Basic tutorial of how to setup a 5V Relay with the Raspberry Pi.
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En esta octava parte del curso de Raspberry Pi se verá el control y manejo de cargas, los cuales los manejaremos con el uso de relevadores, mosfets o transistores y optoacopladores, dado que en muchos de nuestros proyectos deseamos manejar un mayor voltaje ya sea automatizar las luces de algún lugar y eso hace que manejos voltaje alterno desde 127v hasta 220v, o bien manejar tiras de leds o motores a 12v, gracias a los elementos ya mencionados al principio podemos controlar y manejar este tipo de cargas y eso es lo que se ve en esta parte del curso.
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In this lesson,we'll learn how to use Raspberry Pi to drive a relay to switch on/off LED
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Often you want to control modules with a higher voltage with the Raspberry Pi. For this purpose, relays can be used on the Raspberry Pi: The relay “switch” is utilized by means of a low-voltage pulse. Since the Pi only tolerates a maximum of 5V (the GPIOs even only 3.3V) without relays, there is the risk that the Pi could burn out. However, if you have two separate circuits this can not happen.
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It's really easy these days to get your hands on a relay board but you'll quickly find out that most of them are designed for 5V which can a problem for a poor raspberry pi or any other microcontroller running on 3.3V, They just don't have the voltage required to trigger the transistor controlling the relay. So in this tutorial, I'll show you a simple modification of these relay boards to make them 3V3 compatible.
Scoop.it!
Ever wonder how can you control a lamp with a Raspberry PI? We will dive into the specifics and see that's not that hard. But a lot of attention is necessary when working with mains voltage
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